aluminum dust

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• Dust mask — Not to be confused with Paint mask, Surgical mask, or Respirator. A dust mask is a flexible pad held over the nose and mouth by elastic or rubber straps to protect against dusts encountered during construction or cleaning activities, such as… …   Wikipedia

• Dust explosion — A dust explosion is the fast combustion of dust particles suspended in the air in an enclosed location. Coal dust explosions are a frequent hazard in underground coal mines, but dust explosions can occur where any powdered combustible material is …   Wikipedia

• Asian Dust — Yellow Dust Dust clouds leaving mainland China and traveling toward Korea and Japan. Chinese name Traditional Chinese …   Wikipedia

• Arthur Granjean — invented Etch a sketch in the late 1950s. Granjean displayed his prototype, which he had built in his basement and called L Ecran Magique ( The Magic Screen ), at the 1959 International Toy Exhibition. There, executives of the Ohio Art Company… …   Wikipedia

• Flame arrester — A flame arrester being tested …   Wikipedia

• 1938 in film — The year 1938 in film involved some significant events.Events*January mdash; MGM announces that Judy Garland would be cast in the role of Dorothy in the upcoming Wizard of Oz motion picture. Ray Bolger is cast as the Tinman and Buddy Ebsen is… …   Wikipedia

• Jack Haley — Infobox actor bgcolour = name = Jack Haley imagesize = 270px caption = Jack Haley as musician Davey Lane in the 1938 film Alexander s Ragtime Band birthname = John Joseph Haley Jr. birthdate = birth date|1898|08|10 location = Boston,… …   Wikipedia

• Pulse-gun — A pulse gun is a weapon from a fictional world created by Neal Asher in his book, Gridlinked. Asher writes: To call a weapon this is comparable to describing the wide range of pre runcible weapons as bullet guns . The name is inadequate and… …   Wikipedia

• McIntyre Mines — McIntyre Mine The McIntyre mine s an abandoned underground gold mine in Schumacher, Ontario, Canada, which has earned a place in Canadian mining history as one of the nation s most important mines. Its iconic headframe, located near downtown… …   Wikipedia

• Mathematics and Physical Sciences — ▪ 2003 Introduction Mathematics       Mathematics in 2002 was marked by two discoveries in number theory. The first may have practical implications; the second satisfied a 150 year old curiosity.       Computer scientist Manindra Agrawal of the… …   Universalium

• Pyrope — A gem quality, emerald cut pyrope. General Category Nesosilicate Chemical formula …   Wikipedia